Quick injection pump question
Post Fiend
Joined: Oct 2007
Posts: 10,501
Likes: 5
From: Faibanks Ak.
Use a socket on the crank bolt to turn it , and you won't have to pull the gp's or the injectors. It can be done with mirrors and a light if you have good eyes to line the marks up. I recomend pulling the front off so you know 100% sure you are in time as it will run a tooth off, but will never peform right.
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Freshman User
Joined: Jun 2010
Posts: 32
Likes: 0
guess ill have to eat my wheaties today
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Freshman User
Joined: Jun 2010
Posts: 32
Likes: 0
Use a socket on the crank bolt to turn it , and you won't have to pull the gp's or the injectors. It can be done with mirrors and a light if you have good eyes to line the marks up. I recomend pulling the front off so you know 100% sure you are in time as it will run a tooth off, but will never peform right.
looks like ill have to take most of the front end off the motor
Methanoholic
Joined: Mar 2009
Posts: 6,442
Likes: 8
From: Maine (NorCal Native)
It'll be a lot easier to rotate if you pull the Glow plugs, though you do not need to!
I don't understand why one would fight it, they are just too easy to pull.
Personally, I'd rather do more work easier!
-Enjoy
fh : )_~
I don't understand why one would fight it, they are just too easy to pull.
Personally, I'd rather do more work easier!
-Enjoy
fh : )_~
Cargo Master
Joined: Mar 2006
Posts: 2,789
Likes: 5
From: Sand GAp, KY
If you go that route it will. Not just the waterpump lol. There are also 2 bolts in the front on the oilpan that come out as well. When you pull the waterpump make a reference as to what hole the bolts came from. They are different lengths and if put back in the wrong holes wil cause damage to the gears.
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Freshman User
Joined: Jun 2010
Posts: 32
Likes: 0
If you go that route it will. Not just the waterpump lol. There are also 2 bolts in the front on the oilpan that come out as well. When you pull the waterpump make a reference as to what hole the bolts came from. They are different lengths and if put back in the wrong holes wil cause damage to the gears.
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Post Fiend
Joined: Nov 2003
Posts: 21,285
Likes: 16
From: Nutter Fort, WV
There is only one dot on the crankshaft gear.
On the cam drive gear there is one dot and one y.
On the IP drive gear there is one y.
Crankshaft makes two revolutions for each revolution of the crankshaft.
IP makes one revolution for each revolution of the cam drive gear.
If you pull the water pump and timing gear cover, when the two dots are together and the two y's are together, the gears are in time and the engine has piston #1 at TDC.
The IP will only go onto the IP drive gear in one location because of the dowel pin.
So once the gears are in time, everything else is in time.
When it goes back together, if you line the IP drive gear cover static timing mark with the IP static timing mark, the engine will fire and run.
After everything is back together, dynamic timing of the IP by rotating the IP on the IP drive gear housing can fine tune the injection event.
With the IDI gear driven timing, the only time you have a problem is when the gears are un meshed.
There is no proper timing for the oil pump.
It only has to be driven by the crankshaft, not in time with it.
On the cam drive gear there is one dot and one y.
On the IP drive gear there is one y.
Crankshaft makes two revolutions for each revolution of the crankshaft.
IP makes one revolution for each revolution of the cam drive gear.
If you pull the water pump and timing gear cover, when the two dots are together and the two y's are together, the gears are in time and the engine has piston #1 at TDC.
The IP will only go onto the IP drive gear in one location because of the dowel pin.
So once the gears are in time, everything else is in time.
When it goes back together, if you line the IP drive gear cover static timing mark with the IP static timing mark, the engine will fire and run.
After everything is back together, dynamic timing of the IP by rotating the IP on the IP drive gear housing can fine tune the injection event.
With the IDI gear driven timing, the only time you have a problem is when the gears are un meshed.
There is no proper timing for the oil pump.
It only has to be driven by the crankshaft, not in time with it.
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